21691875 is an odd 8-digits composite number following 21691874
and preceding 21691876 . In scientific notation, it is written as 2.1691875 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors.
There are 11044000 positive integers (up to 21691875) that are relatively prime to 21691875.
21691875 has 24 divisors, whose sum is 35997696
The reverse of 21691875 is 57819612
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred ninety-one thousand eight hundred seventy-five
Scientific notation
2.1691875 × 10^7
Engineering notation
2.1691875 × 10^6
Prime Factorization
3 × 575 × 5 × 5 × 503
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4338375
Product of the distinct prime numbers
The prime factorization of 21691875 is 3 × 575 × 5 × 5 × 503.
Since it has a total of 5 prime factors.
5 , 3 , 18 , 40 , 688 , 100 , 2964 , 6452 , 39678 , 94492 , 849306 , 365712 , 9954946 , 1711773 , 87902815 , 20040022 , 645485333 , 841569102 , 3201490352 , 1653985951
n×2
43383750
n×3
65075625
n×4
86767500
n×5
108459375
n÷2
10845937.5
n÷3
7230625
n÷3
5422968.75
n÷5
4338375
n2
470537441015625
n3
1.0206839353331E+22
n4
2.2140548339753E+29
n5
4.8027000701739E+36
2 √n
4657.4537034736
3 √n
278.88962888106
4 √n
68.245539806449
5 √n
29.326444888525
1 , 3 , 5 , 15 , 25 , 75 , 503 , 575 , 1509 , 1725 , 2515 , 2875 , 7545 , 8625 , 12575 , 14375 , 37725 , 43125 , 289225 , 867675 , 1446125 , 4338375 , 7230625 , 21691875
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21691874
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21691875 can be divided by 24 positive divisors.
The sum of these divisors (counting 21691875) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010010101111110111100011
3
Ternary
1111211001122210
4
Quaternary
1102233313203
5
Quinary
21023120000
6
Senary
2052533203
8
Octal
122576743
10
Decimal
21691875
12
Duodecimal
7321203
16
Hexadecimal
14afde3
20
Vigesimal
6fb9df
36
Base36
cwxk3
md5
d693bb5a722b0410cad395d3b7edfb43
sha1
05edf5209c5b6bbeec822458048dafb2f6ae566b
sha256
3f2e77359026fd9fab71629242ff8dcd33c994893852a6ac3c899731f7835673
sha512
37a016bd44c9868e9548ecbb814f3a3cb6a4ef43acb4d3e09683a3da7379833a69f9698dc3f91b3f85167feae88e5ffa339f9ce1a81beb675a1a0cc2112ea6d6
ripemd-160
21767fc8981e0098d6092105f13f6261fac78b0a
Diameter
43383750
Circumference
136294070.28518
Area
1.4782369679336E+15
Volume
4.275430870506E+22
Surface area
5.9129478717345E+15
Circumference
136294070.28518
Perimeter
86767500
Area
470537441015625
Diagonal
30676943.818302
Surface area
2823224646093750
Volume
1.0206839353331E+22
Space diagonal
37571429.611433
Perimeter
65075625
Area
2.0374868867563E+14
Altitude
18785714.805717
Surface area
2.0374868867563E+14
Volume
1.202887553537E+21
Height
10225647.939434